| // RUN: rm -rf %t |
| // RUN: mkdir -p %t |
| // RUN: split-file %s %t |
| |
| // RUN: %clang_cc1 -std=c++20 %t/a.cppm -emit-reduced-module-interface -o %t/a.pcm |
| // RUN: %clang_cc1 -std=c++20 %t/b.cppm -fmodule-file=a=%t/a.pcm -fsyntax-only -verify |
| |
| //--- a.cppm |
| export module a; |
| |
| struct Base { |
| template <class T> |
| friend constexpr auto f(T) { return 0; } |
| }; |
| export struct A: Base {}; |
| |
| //--- b.cppm |
| export module b; |
| |
| import a; |
| |
| namespace n { |
| |
| struct B {}; |
| |
| auto b() -> void { |
| f(A{}); |
| f(B{}); // expected-error {{use of undeclared identifier 'f'}} |
| } |
| |
| } // namespace n |
